topic Re: icpx crash report compiling SLATE linear algebra library in Intel® oneAPI DPC++/C++ Compiler

icpx crash report compiling SLATE linear algebra library

chillenb — Tue, 03 Mar 2026 23:03:35 GMT

I'm trying to compile SLATE (https://github.com/icl-utk-edu/slate) with OneAPI 2025.0 toolchain. Unfortunately icpx crashed.

The command used to configure the code with CMake:

cmake -B build -S . \

-DCMAKE_CXX_COMPILER=icpx \

-DCMAKE_Fortran_COMPILER=ifx \

-DCMAKE_C_COMPILER=icx \

-Dblas=mkl \

-Dblas_threaded=1 \

-Dblas_fortran=ifort \

-Dgpu_backend=none \

-Dmkl_blacs=intelmpi

icpx crashed on src/internal/internal_gbnorm.cc. I've attached the output of the command with -save-temps -v, as requested. I don't have priority support, but the compiler team might still want to know about this bug.

Re: icpx crash report compiling SLATE linear algebra library

chillenb — Tue, 03 Mar 2026 23:06:50 GMT

The bug seems related to the OpenMP implementation. Compilation of src/internal/internal_gbnorm.cc succeeds using Clang's OpenMP via the flag "-fopenmp".

Re: icpx crash report compiling SLATE linear algebra library

Sravani_K_Intel — Tue, 03 Mar 2026 23:11:56 GMT

Thanks for reporting this bug, will escalate it to the Compiler team.

Re: icpx crash report compiling SLATE linear algebra library

Sravani_K_Intel — Thu, 05 Mar 2026 20:58:51 GMT

@chillenb Upon further testing, I found that this bug has been fixed in 2025.1 Compiler release.